phytin
/ˈfʌɪtɪn/(also phytine) Biochemistry
noun
An insoluble salt of phytic acid with calcium and magnesium, found in plant tissues, especially cereals. Also more generally: the acid itself. Also (Phytin, †Phytine): a pharmaceutical preparation containing this substance, formerly used as a tonic.
Origin
Early 20th century; earliest use found in The British Medical Journal. From ancient Greek ϕυτόν plant + -in, after German Phytin.